Structure 7268030 · Brown County, SD

103rd Street over James River

Carries 103rd Street over James River, 0.7n & 1w Of Hecla.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 3 of 9.

How ratings work
Deck4/9 · Poor
Superstructuresets the rating3/9 · Serious
Substructure4/9 · Poor
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT62 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9Superstructure 3/9 · sets the ratingSubstructure 4/9

62 ft end to end, longest span 30 ft. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a through truss.

Built1900rebuilt 1968
Length62.0 ft18.9 m
Daily traffic98counted 2022
Last inspectedSeptember 2024every 12 months

Location

StateSouth Dakota
CountyBrown
Location0.7n & 1w Of Hecla
Carries103rd Street
CrossesJames River
Coordinates45.89307, -98.17066

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length62.0 ft (18.9 m)
Max Span29.9 ft (9.1 m)
Deck Width25.9 ft (7.9 m)
Deck Area149.3 sq m
Main Spans2
Year Built1900 (reconstructed 1968)

Traffic

Avg Daily Traffic98 (2022)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour CriticalUnknown
Structure Number000000007268030

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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